git clone https://github.com/emscripten-core/emsdk.git
./emsdk update
./emsdk install latest
./emsdk activate latest
// 在你.zshrc添加source
source ./emsdk_env.sh
git clone https://github.com/10086XIAOZHANG/cp-webassembly.git
cd cp-webassembly
yarn install
yarn start